Table 5. Univariate Cox proportional hazards regression of survival against KCNMA1 expression level.

Cohort	N	HR	95% CI of HR	P-value
EORTC	95	0.64	(0.45, 0.91)	1.3 × 10−2
MDACC	77	0.39	(0.20, 0.75)	4.8 × 10−3
MGH	50	0.11	(0.02, 0.68)	1.7 × 10−2

Note – N: patient number; HR: hazard ratio; CI: confidence interval.